If it is a repertoire for OTB players, we should look at the most frequently played moves.

In my DB, after 6.Qe2 d5 7.Nf6: gf6: 8.0-0 Bg7 is the main move by far, although 9.Nd4 looks strong.

Quote:

It's a small plus. Whether it would satisfy a Corr player is another question...

Hello.

Stefan Buecker wrote on 01/11/16 at 11:19:57:

Yes. This seems nice and fairly practical. The h1 square is not fantastic for the king.


I thought I would post something on 6...Qe7. One realisation on this is that 7.0-0 d5 (positionally forced) 8.Nxf6+ gxf6 (positionally forced) 9.d4 just transposes to our 6...d5 line so basically the gods of practicality seem to be smiling at white. Alternatives also seem decent of course:


Have a nice day.

Edit fixed a disappeared + in the pgn

Hello.

Have now looked some at 13...Nxd4 and can say that white ends up in various slightly better endgames. Play after 13...Nxd4 is basically not forcing, even if some moves in each given continuation of course are. Some lines:


Winning chances etc. can of course be discussed (ad infinitum - if I know anything about the chesspub forum) but the relevance for this seems vague considering we are basically trying to create an opening repertoire and not for example do deep endgame analysis. 
That being said it useful for the repertoire to avoid lines with obviously zero winning chances.

Have a nice day.

White goes 28. Rf1 and f6 or h5 fall off. The engine says 0.37 for White or something like that but I don't think White has real winning chances...

Therefore, I recommend 4. d3, if people don't have anything against 13... Nxd4 or an improvement for White before that, I'll post some analysis on 4. d3.

Hi,

the 6. Qe2 and 8. 0-0 line seems to be pretty decent and will surprise a lot of opponents, however, there is one line not mentioned that probably leads to a draw:

Hi,

8... bxc6 in the main  line seems to be completely fine for Black, here is some analysis:



Unless someone has a big improvement on this, I think 4. d3 is a better option.

Hello.

Confused_by_Theory wrote on 01/02/16 at 20:34:57:

Alright. After a fair bit of reading I have come to think that at least the Jaenisch coverage in this thread is very near enough to build a repertoire from. This is true at least for a 4.Nc3 repertoire. The other move 4.d3 has been mentioned as an alternative, though I have not seen much groundwork analysis for a 4.d3 repertoire in the thread; which would be needed.

I would say that for a 4.Nc3 repertoire with the lines discussed in this thread there are two definite mainlines to crack:

(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nf6 Nxf6+ 6.Qxf6 Qe2 7.Be7 Bxc6 8.dxc6)
(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nf6 Nxf6+ 6.Qxf6 Qe2 7.Be7 Bxc6 8.bxc6)

In the 8.dxc6 line as far as I can tell nothing has progressed since TN's magnificent summary of analysis done in post #265 (another summary seems not to have been done since this one btw). If this is enough analytically then the analysis should just be polished (I can do this if no one else will) before being bunched together with the other lines in the Jaenisch repertoire.

In the 8.bxc6 line the much discussed line from post #199 seems to have been hard to find a meaningful advantage in. Perhaps because of this another line was proposed in #362. It seems clear to me that these are two lines that both require a substantial body of proof before they can be considered +=. I wonder if we have this and which of the lines (if any) is to be chosen in the repertoire?

I await some kind of comment on these lines. If we decide to go for something in either line I will gladly help analyze.

Have a nice day.